Unfortunately, not everyone can enter to win. The contest is open only to applicants of at least 18 years of age from these countries: Austria, Belgium, Canada, Denmark, Finland, France, Germany, Hong Kong, Italy, Netherlands, Portugal, Spain, Sweden, Taiwan, United Kingdom, and the U.S. To enter the contest, you need to log in with your email (or with Facebook) at the source link below - you have time until tomorrow, May 22. At the moment, there are more than 1 million (!) entries.
Officially announced on April 23, the OnePlus One runs CyanogenMod 11S (based on Android KitKat), and offers high-end features that you rarely find for less than $350, including: a 5.5-inch 1080p IPS display, 13MP rear camera made by Sony, quad-core Snapdragon 801 processor, 3GB of RAM, and a 3,100 mAh battery.